Visualize Latest Observations from the Ambient Weather Stations

Imports

import glob
import xarray as xr
from bokeh.models.formatters import DatetimeTickFormatter
import hvplot.xarray
import holoviews as hv
from distributed import Client
import warnings

warnings.filterwarnings("ignore")
hv.extension('bokeh')

Start up a Dask Cluster

client = Client()
client

Client

Client-766af2c9-113d-11f0-8ad3-6045bdeb2218

Connection method: Cluster object	Cluster type: distributed.LocalCluster
Dashboard: http://127.0.0.1:8787/status

Cluster Info

LocalCluster

d4de2388

Dashboard: http://127.0.0.1:8787/status	Workers: 4
Total threads: 4	Total memory: 15.62 GiB
Status: running	Using processes: True

Scheduler Info

Scheduler

Scheduler-c884e58f-4976-4cb3-be9c-d13a3c8d1ac2

Comm: tcp://127.0.0.1:41705	Workers: 4
Dashboard: http://127.0.0.1:8787/status	Total threads: 4
Started: Just now	Total memory: 15.62 GiB

Workers

Worker: 0

Comm: tcp://127.0.0.1:34931	Total threads: 1
Dashboard: http://127.0.0.1:34245/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:35667
Local directory: /tmp/dask-scratch-space/worker-9iylcr7e

Worker: 1

Comm: tcp://127.0.0.1:37093	Total threads: 1
Dashboard: http://127.0.0.1:37749/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:37715
Local directory: /tmp/dask-scratch-space/worker-i5xg99tw

Worker: 2

Comm: tcp://127.0.0.1:45689	Total threads: 1
Dashboard: http://127.0.0.1:34129/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:44993
Local directory: /tmp/dask-scratch-space/worker-ydo6198r

Worker: 3

Comm: tcp://127.0.0.1:36653	Total threads: 1
Dashboard: http://127.0.0.1:36469/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:43675
Local directory: /tmp/dask-scratch-space/worker-zzq_4azc

Read the Sorted Data, Using the Last File

files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))

ds = xr.open_mfdataset(files[-60:])

---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
Cell In[3], line 3
      1 files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))
----> 3 ds = xr.open_mfdataset(files[-60:])

File ~/miniconda3/envs/instrument-cookbooks-dev/lib/python3.10/site-packages/xarray/backends/api.py:1597, in open_mfdataset(paths, chunks, concat_dim, compat, preprocess, engine, data_vars, coords, combine, parallel, join, attrs_file, combine_attrs, **kwargs)
   1594 paths = _find_absolute_paths(paths, engine=engine, **kwargs)
   1596 if not paths:
-> 1597     raise OSError("no files to open")
   1599 paths1d: list[str | ReadBuffer]
   1600 if combine == "nested":

OSError: no files to open

Plot the Data

formatter = DatetimeTickFormatter(hours="%d %b %Y \n %H:%M UTC")

variables = ['outdoor_temperature', 'outdoor_dewpoint', 'hourlyrainin', 'solarradiation']

panels = []
for variable in variables:
    panels.append(ds[variable].hvplot.line(x='time', by='station', xformatter=formatter))
hv.Layout(panels).cols(1)